lustre_basic.c

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "papi.h"
#include "papi_test.h"

#define NUM_EVENTS 1

int main (int argc, char **argv)
{

        int retval,cid,numcmp;
    int EventSet = PAPI_NULL;
    long long values[NUM_EVENTS];
    int code;
    char event_name[PAPI_MAX_STR_LEN];
    int total_events=0;
    int r;
    const PAPI_component_info_t *cmpinfo = NULL;
    int quiet=0;

        /* Set TESTS_QUIET variable */
        quiet=tests_quiet( argc, argv );

    /* PAPI Initialization */
    retval = PAPI_library_init( PAPI_VER_CURRENT );
    if ( retval != PAPI_VER_CURRENT ) {
       test_fail(__FILE__, __LINE__,"PAPI_library_init failed\n",retval);
    }

    if (!quiet) {
       printf("Trying all lustre events\n");
    }

        numcmp = PAPI_num_components();

    for(cid=0; cid<numcmp; cid++) {

       if ( (cmpinfo = PAPI_get_component_info(cid)) == NULL) {
          test_fail(__FILE__, __LINE__,"PAPI_get_component_info failed\n", 0);
       }

       if (strstr(cmpinfo->name,"lustre")) {
         if (!quiet) printf("\tFound lustre component %d - %s\n", cid, cmpinfo->name);
       }
       else {
         continue;
       }

       code = PAPI_NATIVE_MASK;

           r = PAPI_enum_cmp_event( &code, PAPI_ENUM_FIRST, cid );

       while ( r == PAPI_OK ) {
          retval = PAPI_event_code_to_name( code, event_name );
          if ( retval != PAPI_OK ) {
         printf("Error translating %#x\n",code);
             test_fail( __FILE__, __LINE__,
                            "PAPI_event_code_to_name", retval );
          }

          if (!quiet) printf("  %s ",event_name);

          EventSet = PAPI_NULL;

          retval = PAPI_create_eventset( &EventSet );
          if (retval != PAPI_OK) {
             test_fail(__FILE__, __LINE__,
                              "PAPI_create_eventset()",retval);
          }

          retval = PAPI_add_event( EventSet, code );
          if (retval != PAPI_OK) {
                test_fail(__FILE__, __LINE__,
                                 "PAPI_add_event()",retval);
          }

          retval = PAPI_start( EventSet);
          if (retval != PAPI_OK) {
                test_fail(__FILE__, __LINE__, "PAPI_start()",retval);
          }

          retval = PAPI_stop( EventSet, values);
          if (retval != PAPI_OK) {
                test_fail(__FILE__, __LINE__, "PAPI_start()",retval);
          }

          if (!quiet) printf(" value: %lld\n",values[0]);

          retval = PAPI_cleanup_eventset( EventSet );
          if (retval != PAPI_OK) {
                test_fail(__FILE__, __LINE__,
                              "PAPI_cleanup_eventset()",retval);
          }

          retval = PAPI_destroy_eventset( &EventSet );
          if (retval != PAPI_OK) {
                test_fail(__FILE__, __LINE__,
                              "PAPI_destroy_eventset()",retval);
          }

          total_events++;

          r = PAPI_enum_cmp_event( &code, PAPI_ENUM_EVENTS, cid );
       }
        }

    if (total_events==0) {
       test_skip(__FILE__,__LINE__,"No lustre events found",0);
    }

    if (!quiet) {
      printf("Note: for this test the values are expected to all be 0 as no I/O happens during the test.\n");
    }

    test_pass( __FILE__ );

    return 0;
}